The SIM card in a tri band phone would do this, but I think you would have to pay for service. I use TMobile tri band because the same number works here as well as all over Europe. However if the car was taken to an area with no signal, you would be SOL. Trucking companies use gps tracking in their trucks because trucks not only get stolen, drivers abandon them.

Last edited by crenwelge; 07/09/2008 5:22 PM.